--- Why does the lake smell terrible?--- Because large quantities of water _________.
#101273
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
—That must have been a long trip.—Yeah, it________us a whole week to get there.
#101500
A
takes
B
has taken
C
took
D
was taking
—Jane and July are here. Did I introduce them to you?—No，you didn’t. I’ve seen them，but we__________.
#101029
A
hadn’t been introduced
B
haven’t been introduced
C
weren’t introduced
D
didn’t introduce
---Did you enjoy staying with your good friend last week,Lily?---Yes, I______ with him for a long time.
#102617
A
haven’t stayed
B
didn’t stay
C
wouldn’t stay
D
hadn’t stayed
---- Tom, did Mr. Li join you in your discussion? ---- No, he _____, but he happened to have fallen ill.
#104713
A
would like to
B
will
C
was to have
D
was going to join
After he left college, he was employed in an international company and there ever since .
#104836
A
worked
B
has worked
C
had worked
D
was working